Double funnel float valve

Details Double funnel float valve Double funnel float valve

1999-02-04

2000-07-25

Walton, George L.

Fluid handling

Diverse fluid containing pressure systems

Fluid separating traps or vents

137202, 137391, 137433, 137895, 733225, 141199, 222 64, F16K 3122, F16K 3300

Patent

active

060925477

ABSTRACT:
A combination valve and trap device is described for use in liquid supply and liquid disposal systems. Floats of various size, weight and shape are encased in cylindrical housings with inverse funnel inlets and outlets. The device functions as a valve, trap and back-flow safety device, depending on the float configuration, requiring neither mechanical apparatus nor external power supply for functionality.

REFERENCES:
patent: 1897492 (1933-02-01), Ledoux
patent: 2627868 (1953-02-01), Runnels
patent: 3759281 (1973-09-01), Falcutta
patent: 4096879 (1978-06-01), Serur et al.
patent: 4269222 (1981-05-01), Palti
patent: 4328820 (1982-05-01), Serur
patent: 5409033 (1995-04-01), Hirayama
patent: 5662138 (1997-09-01), Wang
patent: 5722961 (1998-03-01), Fan

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